________ is the amount of voltage induced in wave by an electromagnetic wave.

Medium frequency range is from

Light goes from medium A to medium B at angle of incidence of 40 degrees. The angle of refraction is 30 degrees. The speed of light in B

What is the thickest layer of the ionosphere?

It is the ratio effective Earth radius to true earth radius

The D, E and F layers of the ionosphere are known as ____________.

What is the major advantage of telegraphy over other early types of communications?

The layer that reflects very low frequency waves and absorbs medium frequency waves.

Frequencies in the UHF range propagate by means of

Most of the effects an electro magnetic wave produces when it interacts with matter are due to its

At what speed does radio wave travel?

What is the highest frequency that can be sent straight upward and be returned to earth?

If a wave has a velocity of 4800 feet per second, and wavelength of 5 feet, what is the wavelength?

In electromagnetic waves, polarization __________.

What is the effective radiated power of a repeater with 200W transmitter power output, 4dB feed line loss, 4dB duplexer and circulator loss, and 10dB feed line antenna gain?

When the magnetic field is perpendicular to the surface of the earth, what is the polarization of the TEM wave?

In tropospheric scatter propagation, the attenuation is dependent on

What layer of the atmosphere is used for high-frequency day time propagation?

What is the highest layer of the atmosphere?

When the electric field is perpendicular in the surface of the earth, what is the polarization of the TEM wave?